Shuttle



Patented Apr. 13, 1926.

UNITED STATES PATENT OFFICE.

WINFRED W. HARRIS, OF MELROSE, .MASSAOHUSETTS, ASSIGNOR TO DOEHLER DIE-CAS'IING C0., A CORPORATION OF NEW YORK. ,y

SHUTTLE.

To all whom it may concern Be it known that I, WINFRED State ofMassachusetts, have invented certain new and useful Improvements inShuttles, of which the following is a full, clear, and exactdescription.

This invention relates to shuttles and particularly to the body portionsthereof. Heretofore the body portion of a shuttle has usually beenformed from a single block 0f wood'and the ends of the wooden body fhave been provided with metal tips toreceive the blows of the pickers.Inasmuch, however, as the woods most satisfactorily for shuttle bodiesare `becoming veryscarce and expensive, attempts have been made todevelop satisfactory shuttle bodies in which some or all of the wood isreplaced by other material such, for example', as a metal kor an alloy.Such shuttle bodies should bek comparatively light to'enable them to beoperated satisfactorily by shuttle-picking mechanism of looms now in useandV should at the same time be of suliicient strength to withstandtheblows of the pickers. y

t An object of this invention is to provide Aan improved shuttle body toreplace the shuttle bodies formed from single blocks of wood, and whichwill be strong, durable,

relatively inexpensive, and capable of meet-pl lng all requirements tovwhich 1t may be Fig. 1 is a top View ofva shuttle body embdying thepreferred form of thein'ven tion W. Hannie, a citizen of the UnitedStates, residing at Y Melrose, in the county of Middlesex and.

application inea Aprii 15, 1924. serial No. Y706,655.

samevtaken 'substantially along the line22 of Fig. 1'; l

Fig. 3 is a transverse section of the same, taken substantially alongthe line 3-3 of Fig. 2;

taken substantially along Fig. 2; l

Fig. 5 is a front elevation of the end of thei shuttle provided with thethreadv eye; an Fig. 6- is a ydetail sectional view of th shuttleshowing the manner in which one rend ofy the shuttle is secured sidewalls.

In the illustrated embodiment of the invention, metal head ends 10 and11 are secured to the ends of side walls or bars 12 of wood, fibre orother suitable material, which kthe line 4-4 of arelighter than ifmadeof metal and are tively. i

The end 11 is provided with a recessf18 to receive'a device (not shown)for supporting a'bobbin or the like between the` side walls 12 and withla bolt or screw 19 for securing such supporting device in kposition.vUsually the bobbin-supporting device Vis a pressed metal attachment forreceiving the fixed end of the bobbin and allowing the Fig. 4 is atransverse section of the same,

with longitudinal grooves 16 and lrespec-- yto one of ther Yso transferof the bobbin when the weft breaks The end 10 of the shuttle body isprovided with a lateral thread eye 22 substantially in alignment with agroove 23 extending substantially longitudinally of the shuttle``desir-able to provide the end l() with an opening 26 connecting therecess 2erwith the groove 16, with shallow segmental cut-outs 27 atopposite sides of the recess 24E, and with a shallow longitudinal groove28 extending substantially from the recess 2-11 to the adjacent :tip 13.it should be understood that in practice, an automatic threader (notshown) is secured in the central recess and that the head 10 isconstructed to cooperate with 'such a threader.

Obviously the stresses resulting from checking the shuttle by frictionalen' ment with the shuttle checks at ou ends of the lay, and from theblows of the picker-sticks tend to loosen the connections between theside walls 12 and the ends 10 and 11. Such connections should, thereforebe made very strone. y

To secure the side bars 12 to the metal end 11, the corresponding endsof the bars 12 are cut away at each edge as indicated by the lines 29 inFigure 2 and the reduced portions 3VO so formed are inserted intorecesses 31 converging towards the adjacent tip. As seen in Figs. 1 and3., the countersinks receiving the cup washers 2O and 21 are continuedinto the reduced portions 30 so that the cup washers tend to lool; thereduced portions 30 in the recesses 31. lnasmuch as the bolt 19 miistpass through the reduc-ed portions and the bobbin-holding device (notshown) to-he placed in the recess 18, all of such parts iiiiist beassembled before the insertion of the bolt and will be held in positionthereby. At each side, the endy 11 of the shuttle body is provided witha segment-shaped extension 32 which lits closely against the adjacentside bar 12. The shape of the extensions 32 serves not only to assist inholding the bars 12 in position in the end 11 but also to prevent thethread from catching iii the slots between the metal and the bars 12.'lfhe bending of bars 12 as seen at the left .in Figure 1 may beeffected in any suitable manner, as, for err-ample, by steaming beforeor after the insertion of the reduced portions v3.() into the recesses3l.

ritt their forward ends the bars 12 are provided with reduced ends 3'3to be forced upwardly into convergingA slots 34e which are closed at thetop. To secure the bars 12 aga-inst longitudinal withdrawal, the innerwall of each slot is provided with ribs 35 and 36 respectively fittinginto corresponding grooves in the corresponding side bar. ris indicatedin Figures 1 and i the shape of the ribs 36 conforms in general to theshape of the segmental cut-outs 27 so as to leave walls between suchcut-outs and the upper parts of the slots 34.

As an additional means of securing the bars 12 to the end 10, provisionis made of a bolt or screw 3T having its slotted head seated in a cupwasher 38 in a countersink extending from the side of the end 10 intothe adjacent reduced portion 33, and its opposite end threaded into thebase of a cup washer in a coiintersink extending from the side of theend 1() into the adjacent reduced portion 33. he bolt 37 is also used tosecure :in automatic thieadcr in the end 10. It will be evident that theciip washers 38 and 39 will hold the bars 12 in position in the end 10duringl the insertion of the automatic threader and the bolt 37.

As shown iii Figures 2 and 5, the sides of the end 10 are bevelled sothat they are longer at the top than at the bottom and consequently.avoid' the possibility of the tl `jead catching in the slot formed atthis point. Such a slot is so inclined tothe line followed by the threadthat the thread is not likely to catch in it.

To obviate unnecessary wear of the head 10 at the shuttle eye 22,provision is made of wear pins l0 on opposite sides of the slot 25. ltwill be obvious that various changes in the details herein described andillustrated' for the purpose of explaining the nature of the invention,may be made within the principle and scope of the invention as expressedin the appended claims.

l claim:

1. A shuttle body comprisinpr inetal end sections, side bars connectingsaid sections, one of said sections having` sockets in its inner endadjacent opposite sides thereof diveiging toward the opposite endsection, said side bars being` anchored in said dircrging soclrets'aiidspii'iing at their free ends toward one another before connection to the`other end section.

2.. il shuttle body comprising metal end sections, each section having`sockets in its inner end adjacent opposite sides thereof, the sockets ofone section diverging toward the opposite end of the body, side barsinserted in said diverging sockets, spriino'` their free ends toward oneanother, and anchored in the sockets of the other end section, and meanscountersiinli into the ends of the side bars within the divergingsockets.

for locking the side bars therein.

3. Ar shuttle body comprising two heads and side bars to connect saidheads, one of saidfheadsand the corresponding ends ofy the bars beingshaped' to coinpeltheir assembly by relative Vmovement longitudinal withrespect tothe sidel bars, and the other head andthe corresponding endsof the-side bars being so shaped as to compel their assembly by relativemovement transverse with respect to said side'bais. Y

4. A shuttle body comprising metal end sections, one section havingsockets in its inner end and diverging toward the opposite-end of thebody, and side bars ,anchored at one end in said diverging sockets andat their other' ends sprung toward one another and anchored to the otherend section.

5. A shuttle body comprising vmetal end sections, side bars connectingsaid sections, one of the end sections having socketsin which'the sidebars are received, said one section having openings into said sockets indirections transverse to the side bars, and removable means in saidopenings and countersunk partially into said side bars to lock thelatter within the sockets. Y

6. A shuttle body coniiprising'metal end sections, side bars connectingysaid sections, each end section having-sockets in which 4the ends ofthe side bars are received, the sockets of one end section'opening fromthe inner end of the section, extending in a direction lengthwise of thebody, and diverging toward the other end of the body, the side barsafter insertion thereinbeing sprung toward one another at their freeends and inserted into the sockets ofthe other end section,the lattersockets opening from the inner ends and also 'laterally `to permit ofthe lateral entrance of the side bars therein. A

. 7. A shuttle body comprising metal end sections, side bars connectingsaid sections, each end section having sockets in which the ends of theside bars `are received, the sockets of one end sect-ion opening fromthe inner end of the section, extending in L a direction lengthwise ofthey body, and

diif'erg'ing toward the other end of the body, the side bars afterinsertion therein being sprung towardl one another at their freel endsandinserted into the socketsfof vthe other end section,the lat-tersockets open-- ing from-the inner ends andalso'laterally to permit ofthe lateral entrance of the side bars therein, said sockets with` thelateral-1 openings and the inserted ends of the side bars, havingVcooperating ribs and grooves extending transversely of the length of theside bars for a choring the side bars therein.

8. A shuttle body comprising a front end provided with a thread eye,side bars connected with said front end and cut awayk at their rear endsat both top and bottoni to form reduced portions, a rear end having acentral recess to `receive a bobbin holder and recesses at opposite'sides of the nut.

opposite sides of` said rear end into said reduced portions, a'washer inone of said countersinks lying partlyin said rear end and ypartly in thecorrespondingreduced` portion, a nut correspondingly ,located in theother countersink, anda' bolt rpassing through said washer and threadedinto said 9. A shuttle body comprising a rear endto receive a bobbinholder, sidebars attached to said rear end and having at their forwardends reduced portions with transverse grooves, and a front end `havingver-v tical slots to receive said reduced portions transversely and ribstov fitinto said grooves.

I .10. A shuttle body comprising a rear end h to receive' a bobbinholder, .side bars at- Itached tosaid rear end and having at theirforward endsreduced portions with transverse grooves, and a frontendlhaving vertical slotsclosed at the top and openlat the bottom, toreceive said reduced portions transversely and ribs to fit into saidgrooves.

a front end having a central threading open-l ing and vertical slots toreceive `said reduced portions transversely and ribs to fit into saidgrooves, one vof said ribs at each slot extending into the slot tosuchan eX- tent as to vprovide a Wall of suflicient thickness betweentheslot and the central threading opening. y l f 12. A shuttle bodycomprising a rear tendr to receive a bobbin holder, side bars kattachedto said rear end and having at their forward ends reduced portions Withtransverse grooves and a front end having verr-tical slots closed vatthe top and open at the bottom to receive said reduced portionstransversely and ribs to fit into said grooves,

the sides of the front end being bevelled at their edges so asto belonger at the top than the bottom, and to forni with the side barsjoints such as to avoid catching the thread.

13. A shuttle body-.coi'i'iprising side bars of .fibrous material, athread-delivery head Y attached to said side bars at one end, 'and abobbin holding head havingfrecesses to receive the ends of said bars andsegmentshaped extensions to fit closely against the outer faces of saidbars,the convex forward edges of said extensions assisting vinpreventing relative displacementv of the bars and head and serving toprevent catching ofthe thread.

'14. A shuttlebody comprising' metal end anehoring. the side barstherein, said bolt having at its ends enlarged sections countersunlpartially into the ends of the side bars which are Within the socketsfor preventing tearing of the holt through the side bars.

ln witness whereof, I hereunto subscribe niy Signature.

VVINFRED -W. HARRIS.

